[linux-sunxi] sunxi: Endless musb_bus_suspend warnings when booting A23 tablet with OTG

[Hans de Goede]

Hi,

On 06-09-16 13:02, wens Tsai wrote:
> Hi Hans,
>
> I've built the latest sunxi-next branches of Linux and U-boot and
> tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a
> USB ethernet adapter connected all the time. Upon booting into
> Linux I get an endless stream of:
>
>     musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active
>
> messages. To get out of this I have to physically remove the OTG
> adapter. Booting without the OTG adapter to begin with also gets
> rid of the problem.
>
> Have you run into this problem? I wonder if we should disable VBUS
> just before leaving U-boot? Now that we support DRIVEVBUS this
> shouldn't be a problem.

I've not seen such a problem. I'm fine with disabling Vbus when
leaving u-boot, that certainly is the safe thing to do anyways.

I guess I'll get a u-boot patch from you if that indeed fixes
things ?

Regards,

Hans